Holy shit, no. Neoliberalism is fucking this world up, so the last thing we need now is more corporate power without oversight.

It is a country, not a company. Investors know that before they invest and should not expect to be able to have a say.

No. The only people who have a legitimate say in the affairs of a country are the local citizens and the government officials who live in that country.

Foreign investors and MNCs obviously would not care what their influence had on the country or the local citizen population. They aren't expected to. The most direct relation the investors or mncs have with the country is business and they would see the opportunities to exploit the citizens or loop holes in laws with at least negative if not potentially very bad consequences to the local citizens.

a lot of the small island and shore countries in Asia have been harmed by foreign investors trying to open up new exotic resorts. The prime location for a resort is close to the water, yet that is also where a lot of the citizen population lives especially those involved with the local fishing industry. Investors have pressured the local governments, some of which their legitimacy among the local population is questioned, to block off or remove the shore villages so that resorts can be built instead. The shock doctrine by Naomi Klein, gives a more detailed explanation of this and other times where foreign investors and other people interested in the economics of another country have managed to do more harm than good.